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Re: RFC: integer division by multiply with invariant reciprocal

On 3/25/07, Charles J. Tabony <TabonyEE@austin.rr.com> wrote: 
> So I think that the easiest way to integrate this with the rest of the
> compiler is to have a target hook that emits trees to compute SHIFT, INV1
> and INV2.


I don't think target hooks to expand trees early is a good idea.  RTL
is not going away, and in fact GCC's model having two IR is not unique
to GCC, XLC uses that model also.

Thanks,
Andrew Pinski

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